Stopped at the local America's Tire to take a look at the RM's up close and personal...and was disappointed. Falken's site shows the tread depth at 17/32" and using the salesman's depth gauge, that's about what I saw...in the middle of the tire. The depth between the shoulder lugs is only about 6/32" to 7/32"!!
That's probably what stabilizes the lugs to reduce the road noise but it also means that when the shoulder lugs wear down and get 'bald' you'll still have about 10/32" of good tread in the middle. That might not be the end of the world on dry pavement but it's not what I'd want when it gets wet or when the pavement ends.
It's too bad because I've got the Falken ZIEX S/TZ01's on my Suburban and absolutely love them! So I guess it's back to the drawing board (aka BFG AT's

) for the Jeep.